26.4% Certified Efficiency in All-Perovskite Tandem Solar Cells

PVTIME – Recently, the research team of Professor Tan Hairen of Nanjing University has made the latest progress in the field of all-perovskite tandem solar cells with conversion efficiency as high as 26.4%, surpassing single-junction perovskite cells for the first time, and is comparable to the current highest efficiency of crystalline silicon cells. This new record was published in the latest issue of “Solar cell efficiency tables”.

With certification of the international authoritative organization JET, the steady-state photoelectric conversion efficiency of the all-perovskite tandem solar cell developed by Tan Hairen’s research group is as high as 26.4%, surpassing the highest certified efficiency of 25.7% for single-junction perovskite cells for the first time in the world.

Not long ago, the team has also made important progress in large-area all-perovskite tandem solar cells modules. A tandem solar cell module with a certified efficiency of 21.7% has been developed by adopting industrialized preparation technology. In the current, it is the highest conversion efficiency for large-area perovskite solar cell module.

Up to now, the research group has a total of three world records of tandem solar cells included, namely, the small-area all-perovskite tandem cells with certified efficiency of 26.4%, the large-area tandem cells with certified efficiency of 24.2%, and stacked cell modules with certified efficiency of 21.7%.


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